BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
IADBDL

Washington, DC (IAD) to Hartford, CT (BDL) flight delay odds

Historically, 84.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,092 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
84.5%arrived on time
8.2%30+ min late
1.8%cancelled
1,092scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.9%all scheduled flights
120+ minutes late1.6%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival-0.1 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning25389.3%4.3%2.0%
Afternoon24687.4%6.5%2.0%
Evening24681.7%10.2%2.0%
Night34781.0%10.7%1.4%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday17179.5%7.6%4.7%
Tuesday16390.2%8.0%0.0%
Wednesday15884.8%8.2%0.6%
Thursday16385.9%10.4%0.6%
Friday17082.9%8.2%2.4%
Saturday11984.0%5.0%0.0%
Sunday14884.5%8.8%4.1%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines89285.1%7.8%1.2%
Republic Airways20082.0%9.5%4.5%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20257570.7%21.3%2.7%
August 20257887.2%3.8%2.6%
September 202510787.9%5.6%0.0%
October 20259589.5%4.2%0.0%
November 20257981.0%15.2%0.0%
December 20259086.7%8.9%0.0%
January 20268589.4%4.7%4.7%
February 20269083.3%4.4%6.7%
March 202611178.4%10.8%3.6%
April 202610293.1%2.9%0.0%
May 20269583.2%9.5%0.0%
June 20268581.2%9.4%2.4%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline35.6%
Late aircraft40.3%
National airspace16.0%
Weather8.1%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.